(n) the branch of dentistry dealing with the prevention or correction of irregularities of the teeth, Syn. dental orthopaedics, orthodontia, dental orthopedics, orthodonture

orthodontic treatment

(n) dental treatment that corrects irregularities of the teeth or of the relation of the teeth to surrounding anatomy; treatment is usually by braces or mechanical aids, Example:orthodontic treatment of facial abnormalities

orthodontist

(n) a dentist specializing in the prevention or correction of irregularities of the teeth

orthodox

(adj) of or pertaining to or characteristic of Judaism, Syn. Jewish-Orthodox, Example:Orthodox Judaism

orthodox

(adj) adhering to what is commonly accepted, Ant. unorthodox, Example:an orthodox view of the world

orthodox

(adj) of or relating to or characteristic of the Eastern Orthodox Church, Syn. Greek Orthodox, Russian Orthodox, Eastern Orthodox

The Collaborative International Dictionary of English (GCIDE) v.0.53 Collaborative International Dictionary (GCIDE)

Ortho-

pos>pref. [ Gr. 'orqo`s straight; akin to Skr. ūrdhva upright, v&rsdot_;dh to grow, to cause to grow. ] [ 1913 Webster ]

1. A combining form signifying straight, right, upright, correct, regular; as, orthodromy, orthodiagonal, orthodox, orthographic. [ 1913 Webster ]

2. (Chem.) A combining form (also used adjectively), designating: (a) (Inorganic Chem.) The one of several acids of the same element (as the phosphoric acids), which actually occurs with the greatest number of hydroxyl groups; as, orthophosphoric acid. Cf. Normal. (b) (Organic Chem.) Connection with, or affinity to, one variety of isomerism, characteristic of the benzene compounds; -- contrasted with meta- or para-; as, the ortho position; hence, designating any substance showing such isomerism; as, an ortho compound. [ 1913 Webster ]

☞ In the graphic representation of the benzene nucleus (see Benzene nucleus, under Benzene), provisionally adopted, any substance exhibiting double substitution in adjacent and contiguous carbon atoms, as 1 & 2, 3 & 4, 4 & 5, etc., is designated by ortho-; as, orthoxylene; any substance exhibiting substitution of two carbon atoms with one intervening, as 1 & 3, 2 & 4, 3 & 5, 4 & 6, etc., by meta-; as, resorcin or metaxylene; any substance exhibiting substitution in opposite parts, as 1 & 4, 2 & 5, 3 & 6, by para-; as, hydroquinone or paraxylene. [ 1913 Webster ]

Orthocarbonic

a. [ Ortho- + carbonic. ] (Chem.) Designating a complex ether, C.(OC2H5)4, which is obtained as a liquid of a pleasant ethereal odor by means of chlorpicrin, and is believed to be a derivative of the hypothetical normal carbonic acid, C.(OH)4. [ 1913 Webster ]

Orthocenter

n. [ Ortho- + center. ] (Geom.) That point in which the three perpendiculars let fall from the angles of a triangle upon the opposite sides, or the sides produced, mutually intersect. [ 1913 Webster ]

Orthoceras

‖n. [ NL., fr. Gr. 'orqo`s straight + ke`ras a horn. ] (Paleon.) An extinct genus of Paleozoic Cephalopoda, having a long, straight, conical shell. The interior is divided into numerous chambers by transverse septa. [ 1913 Webster ]

Orthoceratite

n. [ Ortho- + Gr. &unr_;, &unr_;, a horn. ] (Zool.) An orthoceras; also, any fossil shell allied to Orthoceras. [ 1913 Webster ]

Orthoclase

n. [ Ortho- + Gr. &unr_; to break. ] (Min.) Common or potash feldspar crystallizing in the monoclinic system and having two cleavages at right angles to each other. See Feldspar. [ 1913 Webster ]

Orthoclastic

a. (Crystallog.) Breaking in directions at right angles to each other; -- said of the monoclinic feldspars. [ 1913 Webster ]

Orthodiagonal

n. [ Ortho- + diagonal. ] (Crystallog.) The diagonal or lateral axis in a monoclinic crystal which is at right angles with the vertical axis. [ 1913 Webster ]

Orthodome

n. [ Ortho- + dome. ] (Crystallog.) See the Note under Dome, 4. [ 1913 Webster ]

orthodontia

n. (Med.) The treatment of the teeth so as to make the teeth align properly within the mouth, usually involving the wearing of braces and sometimes oral surgery. [ PJC ]

German-English: TU-Chemnitz DING Dictionary DING DE-EN Dictionary

Orthogenese { f }

orthogenesis

Orthogonalmethode { f } (Vermessung)

offset planning

Orthonormalbasis { f } [ math. ]

orthonormal basis

Orthonormalisierungsverfahren { n } [ math. ]

orthonormalization process

Orthopädie { f }

orthopedics; orthopaedics

Orthopäde { m }; Orthopädist { m }

orthopedist

orthodox; strenggläubig { adj }

orthodox

orthodox { adv }

orthodoxly

orthogonal { adj }

orthogonal

orthogonal { adj } [ math. ]

orthogonal

orthogonal { adv }

orthogonally

orthografisch; orthographisch { adj }

orthographic

orthografisch; orthographisch { adv }

orthographically

orthonormal; orthonormiert { adj } [ math. ]

orthonormal

orthopädisch { adj }

orthopedic; orthopaedic

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